en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

expand (9x+1)^2

Solution

expand

(9 x + 1)^{2}

Solution

81 x^{2} + 18 x + 1

Solution steps

(9 x + 1)^{2}

Apply Perfect Square Formula:

(a + b)^{2} = a^{2} + 2 ab + b^{2}

(9 x + 1)^{2} = (9 x)^{2} + 2 \cdot 9 x \cdot 1 + 1^{2}

= (9 x)^{2} + 2 \cdot 9 x \cdot 1 + 1^{2}

Simplify

(9 x)^{2} + 2 \cdot 9 x \cdot 1 + 1^{2} : 81 x^{2} + 18 x + 1

= 81 x^{2} + 18 x + 1

Popular Examples

simplify 4sqrt(12)*2sqrt(3)simplify

412 \cdot 23

simplify (-4x^2+7x-8)-(10x^2+3x+9)simplify

(- 4 x^{2} + 7 x - 8) - (10 x^{2} + 3 x + 9)

simplify (sqrt(-4)+i)(6-5i)simplify

(- 4 + i) (6 - 5 i)

factor 44x+20x^2-15 factor

44 x + 20 x^{2} - 15

- 64 \div 8

Frequently Asked Questions (FAQ)

What is expand (9x+1)^2 ?
The solution to expand (9x+1)^2 is 81x^2+18x+1